SPT-3G: a next-generation cosmic microwave background polarization experiment on the South Pole telescope

By B. Benson, P. Ade, Z. Ahmed, S. Allen, K. Arnold, J. Austermann, A. Bender, L. Bleem, J. Carlstrom, C. Chang and 53 more. Astronomical Telescopes and Instrumentation, 2014

461 citations recorded by the source corpus.

We describe the design of a new polarization sensitive receiver, spt-3g, for the 10-meter South Pole Telescope (spt). The spt-3g receiver will deliver a factor of ~20 improvement in mapping speed over the current receiver, spt-pol. The sensitivity of the spt-3g receiver will enable the advance from statistical detection of B-mode polarization anisotropy power to high signal-to-noise measurements of the individual modes, i.e., maps. This will lead to precise (~0.06 eV) constraints on the sum of neutrino masses with the potential to directly address the neutrino mass hierarchy. It will allow a separation of the lensing and inflationary B-mode power spectra, improving constraints on the amplitude and shape of the primordial signal, either through spt-3g data alone or in combination with bicep2/keck, which is observing the same area of sky. The measurement of small-scale temperature anisotropy will provide new constraints on the epoch of reionization. Additional science from the spt-3g survey will be significantly enhanced by the synergy with the ongoing optical Dark Energy Survey (des), including: a 1% constraint on the bias of optical tracers of large-scale structure, a measurement of the differential Doppler signal from pairs of galaxy clusters that will test General Relativity on ~200Mpc scales, and improved cosmological constraints from the abundance of clusters of galaxies

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/f6449d7a2b3803c4ec43e0a4b0336d3c7dcc349d

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Citations in the corpus

CMB-S4 Science Case, Reference Design, and Project Plan (2019, background): “5) than ongoing and upcoming CMB experiments [428, 429, 49].”
Sounds Discordant: Classical Distance Ladder and ΛCDM-based Determinations of the Cosmological Sound Horizon (2018, methodology): “Appendix Forecast Inputs In Section 3, we presented the expected constraints on rs that can be achieved by SPT-3G (Benson et al. 2014) for two extensions of the ΛCDM model: ΛCDM+Neff and ΛCDM+Neff+Yp.”
Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects (2018, background): “The latter list includes ground-based observatories as the ACT (Atacama Cosmology Telescope) (De Bernardis et al., 2016), the SPT-3G (South Pole Telescope-3G) (Benson et al., 2014), the Simons Array (Suzuki et al., 2016), CLASS (EssingerHileman et al., 2014), BICEP3 (Ahmed et al., 2014), and the Sim”
Measurements of the Temperature and E-mode Polarization of the CMB from 500 Square Degrees of SPTpol Data (2017, background): “For example, SPT-3G is forecasted to improve constraints on Neff over Planck alone by nearly a factor of two (Benson et al. 2014), and CMB-S4 is expected to provide at least another factor of 2 improvement (CMBS4 Collaboration et al. 2016).”
PICO: Probe of Inflation and Cosmic Origins (2019, methodology): “By the time PICO enters Phase A, S3 experiments plan to be operating nearly 100,000 TES bolometers in several independent cameras [11, 14, 295].”
The SPTpol Extended Cluster Survey (2019, background): “This wide and shallow survey complements the deeper surveys conducted with the SPT (Benson et al. 2014; Henning et al. 2018) and will provide additional overlap for the comparison of cluster properties with the ACTPol (De Bernardis et al. 2016) and Planck surveys.”